Yumi (ユミ) is an overweight student who is questioned about the "Paint-Man" incident together with Masatoshi. She dates him until the Sket Dan mention that he targets unintelligent, easy-to-charm girls - after which she dumps him. She later becomes the bass player for Yabasawa's Kaimei Rock Festival band, but falls sick along with the rest of the band members. Manga Debut: Chapter 1 (Paint-Mask) Anime Debut: Episode 1 (The Campus SKET) (Source: Sket Dance Wikia)